[#302] AuthService 도입 및 SceneDelegate 책임 분리 코드 리팩토링

EATSSU/App/Sources/Data/Network/Foundation/TokenManager.swift

@@ -11,7 +11,7 @@ struct TokenPayload: Decodable {
     let exp: TimeInterval
 }
 
-final class TokenManager {
+class TokenManager {
     static let shared = TokenManager()
     private init() {}
 
@@ -41,7 +41,7 @@ final class TokenManager {
     }
 
     /// JWT Payload 디코딩
-    private func decodePayload(token: String) -> TokenPayload? {
+    func decodePayload(token: String) -> TokenPayload? {
         let parts = token.split(separator: ".")
         guard parts.count == 3 else { return nil }
 

EATSSU/App/Sources/Presentation/Auth/ViewController/LoginViewController.swift

@@ -18,7 +18,6 @@ final class LoginViewController: BaseViewController {
     // MARK: - Properties
 
     public static let isVacationPeriod = false
-    public var toastMessage: String?
     private let authProvider = MoyaProvider<AuthRouter>(session: Session(interceptor: AuthInterceptor.shared))
     private let myProvider = MoyaProvider<MyRouter>(session: Session(interceptor: AuthInterceptor.shared))
 
@@ -28,10 +27,11 @@ final class LoginViewController: BaseViewController {
 
     // MARK: - Life Cycle
 
-    override func viewWillAppear(_ animated: Bool) {
-        super.viewWillAppear(animated)
-        handleAutoLogin()
-    }
+//    override func viewWillAppear(_ animated: Bool) {
+//        super.viewWillAppear(animated)
+//        showToastMessageIfNeeded()
+////        handleAutoLogin()
+//    }
 
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -80,16 +80,7 @@ final class LoginViewController: BaseViewController {
             Analytics.logEvent("LoginViewControllerLoad", parameters: nil)
         #endif
     }
-
-    /// Realm에 저장된 토큰이 있는지 확인 후, 있으면 홈 화면으로 이동한다.
-    private func handleAutoLogin() {
-        guard hasStoredToken() else { return }
-        #if DEBUG
-            print("저장된 AccessToken: ", RealmService.shared.getToken())
-        #endif
-        changeIntoHomeViewController()
-    }
-
+
     private func hasStoredToken() -> Bool {
         !RealmService.shared.getToken().isEmpty
     }
@@ -108,30 +99,33 @@ final class LoginViewController: BaseViewController {
     /// 닉네임 설정이 필요한지 확인 후, 필요하면 닉네임 설정 화면으로, 아니면 홈 화면으로 이동한다.
     private func handleNicknameCheck(info: MyInfoResponse) {
         if let nickname = info.nickname {
-            // 사용자의 닉네임을 업데이트하고 홈 화면으로 이동
-            if let currentUserInfo = UserInfoManager.shared.getCurrentUserInfo() {
-                UserInfoManager.shared.updateNickname(for: currentUserInfo, nickname: nickname)
+            print("[디버깅] 닉네임 존재함: \(nickname)")
+
+            let currentUser = UserInfoManager.shared.getCurrentUserInfo()
+            print("[디버깅] currentUserInfo: \(String(describing: currentUser))")
+
+            if let u = currentUser {
+                UserInfoManager.shared.updateNickname(for: u, nickname: nickname)
+                print("[디버깅] 닉네임 업데이트 완료")
+            } else {
+                print("[디버깅] currentUserInfo가 nil임")
             }
-            changeIntoHomeViewController()
         } else {
-            // 닉네임 설정이 필요한 경우
+            print("[디버깅] 닉네임이 없음 → 닉네임 설정 화면으로 이동")
             let setNicknameVC = SetNickNameViewController()
             navigationController?.pushViewController(setNicknameVC, animated: true)
         }
     }
 
+
     /// 토큰을 Realm에 저장하고, 디버깅 로그를 출력한다.
     private func storeTokensAndPrintDebugLogs(accessToken: String, refreshToken: String) {
         RealmService.shared.addToken(accessToken: accessToken, refreshToken: refreshToken)
         #if DEBUG
             print("⭐️⭐️ 토큰 저장 성공 ⭐️⭐️")
         #endif
     }
-
-    private func showToastMessageIfNeeded() {
-        guard let toastMessage = self.toastMessage else { return }
-        view.showToast(message: toastMessage)
-    }
+
 
     // MARK: - 액션 메서드
 
@@ -192,14 +186,15 @@ extension LoginViewController {
             let accessToken = data.accessToken
             let refreshToken = data.refreshToken
 
-            // 토큰을 로컬에 저장
+            // 1) 토큰 저장
             storeTokensAndPrintDebugLogs(accessToken: accessToken, refreshToken: refreshToken)
 
-            // 로컬 매니저에 유저 정보 생성
+            // 2) 인증 상태 업데이트 (SceneDelegate.observeAuthState가 화면 전환 처리)
+            AuthService.shared.login(accessToken: accessToken, refreshToken: refreshToken)  //
+
+            // 3) 로컬 매니저에 유저 정보 생성
             _ = UserInfoManager.shared.createUserInfo(accountType: accountType)
 
-            // 닉네임 등 정보를 확인하기 위해 프로필 조회
-            getMyInfo()
         } catch {
             switch accountType {
             case .apple:
@@ -255,27 +250,6 @@ extension LoginViewController {
             }
         }
     }
-
-    /// 서버에서 현재 유저 정보를 조회
-    private func getMyInfo() {
-        myProvider.request(.myInfo) { [weak self] result in
-            guard let self else { return }
-            switch result {
-            case let .success(moyaResponse):
-                do {
-                    let responseData = try moyaResponse.map(BaseResponse<MyInfoResponse>.self)
-                    guard let responseData = responseData.result else {
-                        return
-                    }
-                    handleNicknameCheck(info: responseData)
-                } catch {
-                    print(error.localizedDescription)
-                }
-            case let .failure(error):
-                print(error.localizedDescription)
-            }
-        }
-    }
 }
 
 // MARK: - 카카오 사용자 정보 가져오기

EATSSU/App/Sources/Presentation/Auth/ViewController/SetNickNameViewController.swift

@@ -105,17 +105,6 @@ final class SetNickNameViewController: BaseViewController {
             currentKeyboardHeight = 0.0
         }
     }
-
-    private func navigateToLogin() {
-        let loginVC = LoginViewController()
-        loginVC.toastMessage = "세션이 만료되었습니다. 다시 로그인해주세요."
-        DispatchQueue.main.async {
-            if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
-               let keyWindow = windowScene.windows.first(where: { $0.isKeyWindow }) {
-                keyWindow.replaceRootViewController(UINavigationController(rootViewController: loginVC))
-            }
-        }
-    }
 }
 
 // MARK: - Network
@@ -129,23 +118,17 @@ extension SetNickNameViewController {
                     UserInfoManager.shared.updateNickname(for: currentUserInfo, nickname: nickname)
                 }
                 self.showAlertController(title: "완료", message: "닉네임 설정이 완료되었습니다.", style: .cancel) {
-                    if let myPageViewController = self.navigationController?.viewControllers.first(where: { $0 is MyPageViewController }) {
-                        self.navigationController?.popToViewController(myPageViewController, animated: true)
-                    } else {
-                        let homeViewController = HomeViewController()
-                        if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
-                           let keyWindow = windowScene.windows.first(where: { $0.isKeyWindow })
-                        {
-                            keyWindow.replaceRootViewController(UINavigationController(rootViewController: homeViewController))
-                        }
-                    }
+                    // 인증 상태만 업데이트 → SceneDelegate.observeAuthState()가 Home으로 전환
+                    let at = RealmService.shared.getToken()
+                    let rt = RealmService.shared.getRefreshToken()
+                    AuthService.shared.login(accessToken: at, refreshToken: rt)
                 }
 
             case let .failure(err):
                 print(err.localizedDescription)
-                
+
                 RealmService.shared.resetDB()
-                self.navigateToLogin()
+                AuthService.shared.logout(message: "세션이 만료되었습니다. 다시 로그인해주세요.")
             }
         }
     }
@@ -174,13 +157,13 @@ extension SetNickNameViewController {
                     print(err.localizedDescription)
 
                     RealmService.shared.resetDB()
-                    self.navigateToLogin()
+                    AuthService.shared.logout(message: "세션이 만료되었습니다. 다시 로그인해주세요.")
                 }
             case let .failure(err):
                 print(err.localizedDescription)
 
                 RealmService.shared.resetDB()
-                self.navigateToLogin()
+                AuthService.shared.logout(message: "세션이 만료되었습니다. 다시 로그인해주세요.")
             }
         }
     }

EATSSU/App/Sources/Presentation/Home/ViewController/HomeViewController.swift

@@ -101,7 +101,7 @@ final class HomeViewController: BaseViewController {
 
     @objc
     private func didTapRightBarButton() {
-        if RealmService.shared.isAccessTokenPresent() {
+        if AuthService.shared.isTokenValid() {
             navigateToMyPage()
         } else {
             presentLoginAlert()
@@ -114,16 +114,19 @@ final class HomeViewController: BaseViewController {
     }
 
     private func presentLoginAlert() {
-        let alert = UIAlertController(title: "로그인이 필요한 서비스입니다",
-                                      message: "로그인 하시겠습니까?",
-                                      preferredStyle: .alert)
-        let confirmAction = UIAlertAction(title: "확인", style: .default) { [weak self] _ in
-            self?.navigateToLogin()
+        let alert = UIAlertController(
+            title: "로그인이 필요한 서비스입니다",
+            message: "로그인 하시겠습니까?",
+            preferredStyle: .alert
+        )
+        let confirm = UIAlertAction(title: "확인", style: .default) { _ in
+            AuthService.shared.logout(message: nil)
+            self.navigateToLogin()
         }
-        let cancelAction = UIAlertAction(title: "취소", style: .cancel, handler: nil)
-        alert.addAction(confirmAction)
-        alert.addAction(cancelAction)
-        present(alert, animated: true, completion: nil)
+        let cancel = UIAlertAction(title: "취소", style: .cancel)
+        alert.addAction(confirm)
+        alert.addAction(cancel)
+        present(alert, animated: true)
     }
 
     private func navigateToLogin() {

EATSSU/App/Sources/Presentation/MyPage/ViewController/MyPageViewController.swift

@@ -41,8 +41,9 @@ final class MyPageViewController: BaseViewController {
 
         nickName = UserInfoManager.shared.getCurrentUserInfo()?.nickname ?? "실패"
         mypageView.setUserInfo(nickname: nickName)
+        showToastMessageIfNeeded()
     }
-
+     
     // MARK: - Functions
 
     override func setCustomNavigationBar() {
@@ -97,26 +98,17 @@ final class MyPageViewController: BaseViewController {
 
     /// 로그아웃 Alert를 스크린에 표시하는 메소드
     private func logoutShowAlert() {
-        let alert = UIAlertController(title: "로그아웃",
-                                      message: "정말 로그아웃 하시겠습니까?",
-                                      preferredStyle: UIAlertController.Style.alert)
-
-        let cancelAction = UIAlertAction(title: "취소하기",
-                                         style: .default,
-                                         handler: nil)
-
-        let fixAction = UIAlertAction(title: "로그아웃",
-                                      style: .default,
-                                      handler: { _ in
-                                          RealmService.shared.resetDB()
-
-                                          let loginViewController = LoginViewController()
-                                          if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
-                                             let keyWindow = windowScene.windows.first(where: { $0.isKeyWindow })
-                                          {
-                                              keyWindow.replaceRootViewController(UINavigationController(rootViewController: loginViewController))
-                                          }
-                                      })
+        let alert = UIAlertController(
+            title: "로그아웃",
+            message: "정말 로그아웃 하시겠습니까?",
+            preferredStyle: .alert
+        )
+
+        let cancelAction = UIAlertAction(title: "취소하기", style: .default, handler: nil)
+
+        let fixAction = UIAlertAction(title: "로그아웃", style: .default) { _ in
+            AuthService.shared.logout(message: nil)
+        }
 
         alert.addAction(cancelAction)
         alert.addAction(fixAction)

EATSSU/App/Sources/Presentation/MyPage/ViewController/MyReviewViewController.swift

@@ -120,17 +120,6 @@ final class MyReviewViewController: BaseViewController {
             noMyReviewImageView.isHidden = true
         }
     }
-
-    private func navigateToLogin() {
-        let loginVC = LoginViewController()
-        loginVC.toastMessage = "세션이 만료되었습니다. 다시 로그인해주세요."
-        DispatchQueue.main.async {
-            if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
-               let keyWindow = windowScene.windows.first(where: { $0.isKeyWindow }) {
-                keyWindow.replaceRootViewController(UINavigationController(rootViewController: loginVC))
-            }
-        }
-    }
 }
 
 extension MyReviewViewController: UITableViewDelegate {}
@@ -171,13 +160,13 @@ extension MyReviewViewController {
                     print(err.localizedDescription)
 
                     RealmService.shared.resetDB()
-                    self.navigateToLogin()
+                    AuthService.shared.logout(message: "세션이 만료되었습니다. 다시 로그인해주세요.")
                 }
             case let .failure(err):
                 print(err.localizedDescription)
 
                 RealmService.shared.resetDB()
-                self.navigateToLogin()
+                AuthService.shared.logout(message: "세션이 만료되었습니다. 다시 로그인해주세요.")
             }
         }
     }
@@ -194,7 +183,7 @@ extension MyReviewViewController {
                     print(err.localizedDescription)
 
                     RealmService.shared.resetDB()
-                    self.navigateToLogin()
+                    AuthService.shared.logout(message: "세션이 만료되었습니다. 다시 로그인해주세요.")
                 }
             }
         })

EATSSU/App/Sources/Presentation/MyPage/ViewController/UserWithdrawViewController.swift

@@ -129,15 +129,9 @@ extension UserWithdrawViewController {
                 do {
                     let responseData = try moyaResponse.map(BaseResponse<Bool>.self)
                     guard let data = responseData.result, data else { return }
-                    
+
                     RealmService.shared.resetDB()
-                    let loginViewController = LoginViewController()
-                    if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
-                       let keyWindow = windowScene.windows.first(where: { $0.isKeyWindow })
-                    {
-                        loginViewController.toastMessage = "탈퇴 처리가 완료되었습니다."
-                        keyWindow.replaceRootViewController(UINavigationController(rootViewController: loginViewController))
-                    }
+                    AuthService.shared.logout(message: "탈퇴 처리가 완료되었습니다.")
                 } catch let err {
                     print(err.localizedDescription)
                 }